If thats for Tornadoes it has One Design Flaw

[jeff of pa]

It May be a One in a Million event But WHAT IF Debris lands On the Trap Door ?

Sure it's Not Likely If You Place it Well enough away from Other Structures.
but I'd Plan for Murphy's Law & Have 2 Wings , One on each Side with Tunnels To Escape Hatches.

Why Wait & Hope Someone Comes quick ??

Even If it's Not for Tornadoes but for Something Private, an Escape Hatch or 2 May Be a Good Idea/ It's Not So Secret with Fake Grass & A Hatch Needs to be Deeper & Well Ventalated. I'd have Escape Hatches in the center of Heavy Rose or Thorn Bushes on my property line
And a Clippers in case Needed in an Emergency

 

[mrwiskers]

the "video" is an excellent example of how Artificial Intelligence is anything but intelligent ... how many flaws do you see in this (cartoon...) "video" ... ?

 

[jeff of pa]

I've never Done Construction But, Besides the Ones Mentioned above.

what set Me Off at The Beginning.

they buried the box, then remodeled it

Of course I Thought at First it was a Suggestion Video, Considering it was a Tornado Video so it being buried Shallow & In the Wrong Order .
Bury First then Take Panneling through the Hatch

so AI Doesn't Matter, It Was a Simple Suggestion Video Nothing more. For that Use, It made it's Point.

After Posting the Title Popped up So I added the 2nd Half.

OF Course The Electricity & Computer in a Tornado Shelter Did Confuse me

 

[Gare]

How did they get all the cabinets and large items through the entry opening. What happens if it gets sealed off. How do they breathe ?